Improvement in mechanical movements for working windmills



Patented Dec.15,I874 S WITNESSES INVENTOR mam ,4 A

Attorheys Unrrnn STATES PATENT ()FFICE.

GEORGE METOALF, OF SOMONAUK, ILLINOIS.

IMPROVEMENT IN MECHANICAL MOVEMENTS FOR WORKING WINDMILLS.

Specification forming part of Letters Patent No. 157.855. dated December 15, 1874; application filed June 18, 1874.

To all whom it may concern:

Be it known that l, GEORGE METCALF, of Somonauk, in the county of De Kalb and in the State of Illinois, have invented certain new and useful Improvements in Windmill; and do hereby declare that the following is a full clear, and exact description thereof, reference being had to the accompanying drawings, and to'the letters of reference marked thereon, making a part of this specification.

My invention relates to the class of windmills in which the crank-shaft, upon which the wheel is secured, works in a pivoted box; and the nature of my invention consists in the connection or method of transferring the motion from the crank to the point of connection of the pump-rod, as will .be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, which is a perspective view of a windmill embodying my invention.

A represents the turn-table of a windmill provided with two standards, B B, in which is hung a box, G, upon hollow pivots or bearings a a. D represents the wind-wheel, at-

tached on the end of the crank-shaft b, which works in suitable bearings on the box 0, the crank working inside of said box. Upon the crank of the shaft b is placed a box, d, having a projecting arm, 01, which is pivoted in a fork, f, and this fork is connected by a swivel joint to a rod, 0, passing out through one of the hollow journals of the box 0. The outer end of the rod 6 is forked and pivoted to a sleeve or collar, h, which is fastened on an arm, m, projecting from a horizontal oscillating or rocking shaft, Gr, having its bearings in suitable boxes on the turn-table A. This shaft is provided with another arm, m, which is connected at its outer end direct to the pump-rod. I

By lengthening or shortening the oscillating or rocking shaft G, the wheel may be hung a greater or less distance from the vertical axis of the mill; and by adjusting the collar 72. on its arm m by means of the set-screw i, the stroke of the pump can be lengthened or shortened, as desired.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination of the crank-shaft I), box d, with arm 01, swivel-fork f, rod 6, and adjustable sleeve or collar h, and the oscillating or rocking shaft G, having arms m m, all substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 4th day of June, 1874.

GEO. METGALF.

Witnesses:

A. N. MARE, O. L. EVERT. 

